1994902672 has 80 divisors (see below), whose sum is σ = 4687949952. Its totient is φ = 802805760.

The previous prime is 1994902667. The next prime is 1994902681. The reversal of 1994902672 is 2762094991.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1071022 + ... + 1072882.

Almost surely, 2^1994902672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1994902672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2343974976).

1994902672 is an abundant number, since it is smaller than the sum of its proper divisors (2693047280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1994902672 is a wasteful number, since it uses less digits than its factorization.

1994902672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456 (or 2450 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 1994902672 is about 44664.3333320895. Note that the first 5 decimals coincide. The cubic root of 1994902672 is about 1258.8497674582.

The spelling of 1994902672 in words is "one billion, nine hundred ninety-four million, nine hundred two thousand, six hundred seventy-two".